Grades 5-6 Video Solutions 2022-2022_5-6

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The Cistercian numeral system uses glyphs to represent numbers. For values between 1 and 99, two glyphs are combined: the tens value glyph and the ones value glyph. For example, the glyph for 24 combines the glyph for 20 and the glyph for 4. Similarly, for 81, the glyph includes the glyph for 80 with an additional line for 1. The glyph for the number 45 is created by combining the glyph for 40 (an up arrow on the left) and the glyph for 5 (a triangle on the right). This combination is shown in option D.